ASA Landing Gear Practice Test

These questions are part of the practice quiz. Start practicing

• What is the main purpose of wheel chocks?
• How is the oil level of an air and oil shock strut typically checked?
• Which hydraulic hose specification indicates a hose for high-pressure applications?
• Which condition is most likely to cause excessive fluctuations of the pressure gauge in a hydraulic system?
• Which factor contributes to structural fatigue in landing gear?
• What is the primary purpose of landing gear in an aircraft?
• What does a gear warning horn indicate during landing?
• Why are hydraulic systems commonly used in landing gear operations?
• What is the primary function of the landing gear doors?
• Why are debooster cylinders used in brake systems?
• If an airplane equipped with master cylinders and single-disk brakes has excessive brake pedal travel, but the brakes are hard and effective, what is the probable cause?
• Overinflated aircraft tires may cause damage to which component?
• What is the primary purpose of the landing gear fairing?
• What should be avoided when the brakes are hot in an aircraft equipped with multiple-disk type brake assemblies?
• When servicing an air/oil shock strut with MIL-5606, what is the correct procedure?
• What effect do extreme temperatures have on the landing gear hydraulic system?
• What marking indicates that an O-ring is suitable for use with MIL-H-5606 (mineral base) fluid?
• How can improper tire pressure affect landing gear performance?
• What could indicate a need to replace a fusible plug?
• What might a red gear indicator light signify?
• How does weight and balance impact landing gear performance?
• Which device in a hydraulic system allows circulation of fluid when there are no demands on the system?
• What is involved in the landing gear extension/retraction sequence?
• What could cause parking brakes to bleed off pressure apart from an external leak?
• How does an air/oil type landing gear shock strut cushion the initial shock of landing?
• What is the function of a hydraulic accumulator during peak demands?
• What is the purpose of a relief valve in a brake system?
• What is an indication that the air has been purged from the aircraft brake system during bleeding?
• In shock struts, chevron seals are used to achieve which purpose?
• Name a common inspection point for landing gear maintenance.
• During landing gear inspection, what should be checked regularly?
• If the required torque of a trunnion nut is 320 inch-pounds and a 2-inch straight adapter is used on an 18-inch torque wrench, how many foot-pounds will be indicated?
• What is the primary purpose of an orifice check valve?
• Which maintenance practice is crucial for avoiding hydraulic failures in landing gear?
• What types of records are crucial for maintaining landing gear systems?
• Which situation could signify a need for manual gear deployment?
• A fully-charged hydraulic accumulator provides what benefit to a hydraulic system?
• Identify a common type of shock absorber used in landing gear systems.
• What should be performed after maintenance on an aircraft's landing gear system?
• Which type of control devices are used when a large volume of fluid is required for aircraft brakes?
• What type of motor is typically used to raise and lower landing gear?
• Which system serves as the pressure source for power brakes in aircraft?
• A high-speed aircraft tire with a sound cord body and bead may be recapped how many times?
• How does the design of landing gear affect overall aircraft performance?
• What is a potential safety issue related to landing gear?
• How is equal pressure on both sides of a Cleveland disk brake's rotating disk assured?
• What does excessive wear in the center of the tread of an aircraft tire indicate?
• What is the function of a safety pin in landing gear?
• What is likely to happen if the landing gear is not deployed before landing?
• What are the two main types of landing gear configurations?
• Where should a brake actuator be positioned in a hydraulic brake system?
• What should be done when an empty shock strut is filled with fluid?
• What is the primary purpose of balancing aircraft wheel assemblies?
• What kind of pressure is essential for the operation of a power boost brake system?
• What is the procedure called for checking landing gear for proper function?
• What should be checked when a shock strut bottoms during landing?
• In hydraulic systems, what allows for the safe engagement of the emergency landing gear?
• What procedure should be followed if the landing gear warning light fails?
• Which brake type is not adaptable to mechanical operation?
• What is the purpose of the landing gear control handle?
• What does the term "gear up landing" refer to?
• What provision must be present in aircraft with retractable landing gear?
• For what purpose are torque links designed in landing gear systems?
• Which component in the brake system can cause improper braking if it gets contaminated?
• How often should landing gear systems be inspected?
• What emergency procedure should be executed for a landing gear malfunction?
• What characteristic is crucial for landing gear on rough terrain?
• Which type of landing gear is typically designed for rough terrain landings?
• Which of the following is a potential consequence of not maintaining landing gear?
• What indicates a high-pressure type on an air valve core stem?
• What does the term "cycle count" refer to in landing gear systems?
• What is the result of a malfunctioning steering damper during landing?
• What is used to prevent a rapid extension of an oleo shock strut after landing impact?
• Explain how an oleo strut works.
• What role does landing gear play in aircraft design?
• What do lockout deboosters primarily function as?
• What are the key components of tricycle landing gear?
• What is meant by the term "ground load" in relation to landing gear?
• What is the role of a sequence valve in a hydraulic retractable landing gear system?
• How can it be determined that all air has been purged from a master cylinder brake system?
• What can cause landing gear failure during takeoff or landing?
• If a shock strut bottoms after it has been properly serviced, what should be done next?
• If an aircraft shock strut (air/oil type) bottoms upon initial landing contact, but functions correctly during taxi, what is the most probable cause?
• Where can the instructions for the fluid type and air pressure in a shock strut be found?
• If air in the brake system is not the cause of spongy brake action, what is the next likely cause?
• What is a common material used for construction of landing gear?
• What is the primary purpose of debooster valves in brake systems?
• What is the function of a cam incorporated in a nose gear shock strut?
• What is the primary purpose of shock struts in landing gear?
• What aspect of landing gear does excessive wear directly affect?
• What type of landing gear configuration is most common for commercial jets?
• What is a common material used for manufacturing landing gear components?
• What is the purpose of hydraulic fluid in the landing gear system?
• How long should you wait after a flight before checking tire pressure?
• Why do tire manufacturers recommend inflating and then deflating tubes in new tires?
• What does a landing gear retract mechanism typically consist of?
• What is the purpose of a brake debooster valve?
• What action should be taken immediately after ensuring the landing gear is down?
• What should be done following the activation of a properly operating fusible plug in a tire?
• What happens when a brake debooster valve fails?
• What is the purpose of chines on some aircraft nose wheel tires?
• Why is it recommended to deflate tires on split rim wheels before removal?
• What does the term 'bleeding brakes' refer to in brake service work?
• What component of the landing gear absorbs shock during landing?
• What can indicate a malfunction in the landing gear system?
• What is the most probable cause of excessive dragging left brake on an airplane with no recent service work?
• What is the function of metering pins in oleo shock struts?
• When installing a chevron-type seal in an aircraft hydraulic cylinder, which direction should the open side of the seal face?
• What is the primary function of brake components in conjunction with landing gear?
• How does landing gear impact aircraft maintenance schedules?
• What is the purpose of the landing gear squat switch?
• What is the purpose of the weight on wheels switch in aircraft landing gear systems?
• A stripe or mark applied to a wheel rim and extending onto the sidewall of a tube-type tire is referred to as what?
• What is considered preventive maintenance regarding landing gear tires?
• What is a common cause of landing gear alignment issues?
• Which system is responsible for extending and retracting the landing gear?
• What is measured to determine the proper operating position of an oleo shock strut?
• What safety feature prevents the landing gear from being retracted while on the ground?
• If the extended longitudinal axis of the main landing gear wheel assemblies intersects aft of the aircraft, how are the wheels described?
• What is the primary function of a sleeve, spacer, or bumper ring in a landing gear oleo shock strut?
• What occurs at the steering damper if the flow of high-pressure fluid is interrupted?
• What is a common failure mode for landing gear systems?
• Which method is used to correct an out-of-tolerance toe-in condition of main landing gear wheels?
• How can pilot error affect landing gear operations?
• Excessive wear in the shoulder area of an aircraft tire indicates what condition?
• Which component is essential for preventing accidental gear retraction during takeoff?
• What is the significance of a landing gear emergency checklist?
• What is a common indicator of air in the brake system?
• What will happen to fusible plugs installed in some aircraft wheels at elevated temperatures?
• What is a critical factor to consider during a landing gear inspection?
• What safety feature is critical for aircraft equipped with retractable landing gear in case of system failure?
• Which component is crucial for detecting the landing gear's deployment status?
• What action is recommended when there is a disparity of more than 5 pounds of air pressure in dual-mounted tires?
• What is the purpose of a compensating port or valve in a brake master cylinder of an independent brake system?
• What consequence might improper maintenance of landing gear lead to?
• What is a probable cause of excessive travel in brake pedals reported by a pilot?
• What might indicate a potential issue with the landing gear during operation?
• How is the stability of landing affected by the landing gear design?
• How does the hydraulic system operate in relation to the landing gear?
• What is the primary purpose of nose gear centering cams in retractable landing gear systems?
• Where is the position of a brake debooster in a hydraulic brake system?
• What environmental factor should be closely monitored during landings?
• Which brake system component is primarily affected by deteriorated flexible hoses?
• Which of the following is a common landing gear malfunction that could impact flight safety?
• What are the best safeguards against heat buildup in aircraft tires?
• What is the role of the failsafe mechanism in landing gear?
• What is the function of the torque links on a landing gear oleo strut?
• Which device provides visual indicators for the landing gear’s status?
• Why is it essential to properly stow landing gear doors?
• What is the primary function of the landing gear in an aircraft?
• What action should a pilot take if landing gear fails to indicate it is down and locked?
• Which type of aircraft is likely to use retractable landing gear?
• Which aspect of aircraft brake systems must be maintained to prevent overheating?
• What happens if there is internal leakage in a brake master cylinder unit?
• What impact does hydraulic fluid thickening have on the landing gear?
• In the event of a landing gear failure, what is a critical first step for pilots?
• Which type of landing gear is better suited for rough terrain?
• What characterizes a hydraulic system referred to as a 'power pack' system?
• What type of filter is best suited for removing very fine particles from a hydraulic fluid?
• What does "gear down and locked" signify?
• What does the phrase "failure to extend gear prior to landing" typically imply?
• How are braking systems typically integrated with landing gear?
• When does a landing gear position and warning system provide a warning in the cockpit?
• Which repair method is suitable for fixing a toe-in condition without component replacement?
• What are signs of landing gear failure during approach?
• What operational check can be done to confirm landing gear status?
• What must a pilot check before landing to ensure gear is secure?
• Which component is known to affect the stroke limitation in oleo shock struts?
• Why is regular landing gear inspections important?
• What is the purpose of emergency gear extension?
• How often should routine maintenance be performed on landing gear?
• When bleeding aircraft brakes, which of the following indicates successful purge of the system?
• What component is crucial for landing gear retraction in a hydraulic system?
• How do weight on wheels (WOW) systems function?
• Which type of valve is utilized to isolate the emergency brake system from the normal power brake control valve system?
• If a pilot reports that a brake is spongy, what is the most likely cause?
• What does "overcenter" mean in landing gear mechanics?
• Which of the following is NOT a part of a typical landing gear assembly?
• Power boost brake systems are typically used on aircraft that experience what condition?
• In a hydraulic system, what is the function of a pressure regulator?
• What component is essential for the mechanical locking of landing gear?
• What should be done immediately before adding fluid to a shock strut?
• What routine checks should pilots perform regarding the landing gear before takeoff?
• What maintenance action is taken when tires show excessive wear?
• What is the role of the landing gear position indicator?
• What should pilots do if they experience difficulties during landing due to gear alignment?
• What should pilots check for before takeoff related to landing gear?
• Where can the correct inflation pressure for an aircraft tire be obtained?
• A special bolt in a landing gear attachment requires a torque value of 440 inch-pounds. How many foot-pounds does this equate to?
• What is a significant advantage of tricycle landing gear over conventional gear?
• How can wind conditions affect landing gear performance?
• Which of the following is considered harmful to aircraft tires?
• What is a critical instruction regarding the use of hydraulic systems in aircraft?
• What type of filter is identified by incorporating specially treated cellulose paper?
• What could be a consequence of a malfunctioning gear indicator light during landing?
• Which component is integral to maintaining control during the retraction of landing gear?
• What factor is critical for ensuring stable landings regarding landing gear?
• What is the effect of a restricted compensator port in a brake master cylinder?
• What type of landing gear offers better performance on rough terrain?
• What increases the risk of heat buildup in aircraft tires?
• How do retractable landing gear affect an aircraft's performance?
• What is a potential hazard of using brakes designed for lower pressure with a high-pressure system?
• What are hydraulic packing seals used for in a landing gear shock strut?
• Which of the following can be an indication of a landing gear malfunction?
• Which landing gear configuration is characterized by a nose wheel and two main wheels?
• What device allows fluid to flow freely in one direction while restricting flow in the opposite direction?
• What is the consequence of a broken piston return spring in a brake master cylinder?
• What is the role of the landing gear actuating system?
• A hydraulic hose identified as MIL-H-8794 is marked with a yellow stripe. What does this stripe indicate?